* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    background: #f0f2f5;
    min-height: 100vh;
    display: flex;
}

.sidebar {
    width: 300px; /* 增加侧边栏宽度 */
    background: #1a1a1a;
    color: #fff;
    height: 100vh;
    padding: 20px;
    position: fixed;
    display: flex;
    flex-direction: column;
}

.date {
    font-size: 14px;
    color: #888;
    margin-bottom: 8px;
}

.title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 30px;
    color: #00ff88;
}

.menu-item {
    padding: 12px;
    margin: 8px 0;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
}

.menu-item:hover {
    background: #333;
}

.menu-item img {
    width: 20px;
    margin-right: 12px;
}

.divider {
    height: 1px;
    background: #333;
    margin: 20px 0;
}

.footer {
    position: absolute;
    bottom: 20px;
    font-size: 12px;
    color: #666;
}

.main-content {
    margin-left: 320px; /* 增加主内容区的左边距 */
    padding: 40px;
    min-height: 100vh;
    flex-grow: 1; /* 确保主内容区占据剩余空间 */
}

.ai-badge {
    background: #00ff8820;
    color: #00ff88;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    margin-top: 20px;
}